Outlaw,I also do the majority of my shootin' with 50#self-bows and switchcane arrows with razor sharp trade points. I try to get all of my cane arrows near, or ,just over 600 grains. This often includes adding extra paint or spar varnish to increase weight. In my experience,with that weight,decent penetration can be had in big game such as deer and hogs(with cane).I would'nt use anything lighter myself(in cane),and have taken these animals with 700 grains with good results.The reason I keep saying,"in cane",is because I also shoot privet shoot shafts,and,even with lighter weights(under 600 grs.),have gotten complete pass-throughs, something which I've never done with cane. The cane will kill them just as dead,it just does'nt penetrate as well.This is just what works for me,my humble opinion. God bless